Gallatin River

Montana environmental officials are proposing to give part of the Gallatin River a pollution designation as they research the factors for excessive algae growth.

Environmental groups allege a southwestern Montana water district is illegally polluting the West Fork of the Gallatin River. On Wednesday, the groups...

The Montana Department of Environmental Quality announced Thursday that the Lower Gallatin Watershed is its next priority basin. This means hundreds of...

Flood waters remain a concern across Montana today and into next week.Flooding and flood warnings remain in effect for Missoula, where the Clark Fork is…

BOZEMAN, Mont. (AP) — A parasite that caused a major die-off of mountain whitefish in the Yellowstone River has been found in seven other rivers in…

State officials today released the third and final water quality report for the March 3 wastewater spill that polluted parts of the Gallatin…

Trace amounts of E. coli and nitrates were found in samples from the Gallatin River. This was a result of a pipe leak that spilled 35 million gallons of…

No more water is leaking from a treated sewage holding pond at Big Sky into the Gallatin River. At least 35 million gallons of the wastewater spilled into…

State public health, environmental and wildlife officials are in Big Sky accessing the damage after the spill of millions of gallons of sewage water…

Peoples’ love of polar fleece and yoga pants could be contributing microplastic pollution into the water supply.A Bozeman-based group will launch a…